<template>
  <div class="bottom-nav">
    <ul>
      <li v-on:click="changeNav(list,index)" v-bind:class="{active:index===curIndex}" v-for="(list,index) in navConfig" v-bind:key="list.icon"><a><i v-bind:class="list.icon"></i><div>{{list.name}}</div></a></li>
    </ul>
  </div>
</template>

<script>
import qs from 'qs'
let {index} = qs.parse(location.search.substr(1))
// 等同于 index = qs.parse(location.search.substr(1)).index
let navConfig = [
  {
    name: "有赞",
    icon: "icon-home",
    href: "index.html"
  },
  {
    name: "分类",
    icon: "icon-category",
    href: "category.html"
  },
  {
    name: "购物车",
    icon: "icon-cart",
    href: "cart.html"
  },
  {
    name: "我",
    icon: "icon-user",
    href: "member.html"
  }
];
export default {
  data() {
    return {
      navConfig,
      curIndex: parseInt(index) || 0
    };
  },
  methods:{
    changeNav(list,index){
      location.href = `${list.href}?index=${index}`
    }
  }
};
</script>

<style>
.bottom-nav {
  position: fixed;
  width: 100%;
  height: 50px;
  bottom: 0;
  background-color: #fff;
  z-index: 999;
  -o-border-image: url(https://b.yzcdn.cn/v2/image/wap/border-line-2.png) 2
    stretch;
  border-image: url(https://b.yzcdn.cn/v2/image/wap/border-line-2.png) 2 stretch;
  border-top: 2px solid #e5e5e5;
}

@media only screen and (-webkit-min-device-pixel-ratio: 1.5),
  only screen and (min--moz-device-pixel-ratio: 1.5),
  only screen and (min-device-pixel-ratio: 1.5) {
  .bottom-nav {
    border-top-width: 1px;
  }
}

.bottom-nav ul {
  position: relative;
  height: 100%;
  zoom: 1;
}

.bottom-nav ul:after {
  content: "";
  display: table;
  clear: both;
}

.bottom-nav li {
  display: block;
  float: left;
  width: 25%;
  height: 100%;
}

.bottom-nav a {
  display: block;
  width: 100%;
  height: 100%;
  padding-top: 8px;
  text-align: center;
  font-size: 10px;
}

.bottom-nav [class^="icon-"] {
  display: block;
  width: 22px;
  height: 22px;
  margin: auto;
  margin-bottom: 4px;
  background-position: 50%;
  background-repeat: no-repeat;
  background-size: 100% auto;
}

.bottom-nav .icon-home {
  background-image: url("");
}

.bottom-nav .icon-category {
  background-image: url("");
}

.bottom-nav .icon-cart {
  background-image: url("");
}

.bottom-nav .icon-user {
  background-image: url("");
}

.bottom-nav .active a {
  color: #ff6366;
}

.bottom-nav .active .icon-home {
  background-image: url("");
}

.bottom-nav .active .icon-category {
  background-image: url("");
}

.bottom-nav .active .icon-cart {
  background-image: url("");
}

.bottom-nav .active .icon-user {
  background-image: url("");
}

















</style>

